CN211131362U

CN211131362U - Electrocoagulation catheter with hollow channel

Info

Publication number: CN211131362U
Application number: CN201921725985.9U
Authority: CN
Inventors: 李昭辉
Original assignee: First Peoples Hospital of Yibin
Current assignee: First Peoples Hospital of Yibin
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-07-31
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses an electrocoagulation catheter with a hollow channel, which comprises an outer sleeve, wherein an electrocoagulation head is arranged at the left end of the outer sleeve, the right end of the outer sleeve is closed, a handle is sleeved on the outer surface close to the right end of the outer sleeve, and a lead and a water delivery pipe are arranged in the outer sleeve; one end of the lead is connected with the electrocoagulation head, and the other end of the lead passes through the right end of the outer sleeve and is connected with a power supply; the outer diameter of the lead is smaller than the inner diameter of the outer sleeve, a cavity between the lead and the outer sleeve is a water storage cavity, and water is arranged in the water storage cavity; the water delivery pipe is arranged on the inner wall of the outer sleeve, one end of the water delivery pipe is close to the left end of the outer sleeve, and the other end of the water delivery pipe penetrates through the right end of the outer sleeve and is connected with the water pump; the right end of the outer sleeve is also provided with a water outlet which is communicated with the water storage cavity and the outer space of the outer sleeve. Adopt the utility model discloses, through store cold water in the pipe inner chamber, the heat conduction that the electricity congeals the head and produces is to cold water in, reduces the gathering of heat in the vein, reduces the risk of patient's blood vessel surrounding tissue burn.

Description

Electrocoagulation catheter with hollow channel

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an electric coagulation catheter with an empty channel.

Background

Varicose veins is one of the most common peripheral vascular diseases in clinic, is often seen in middle-aged and elderly people, and is related to factors such as long-term standing and heredity. It is characterized by the tortuosity and expansion of superficial veins of affected limbs, discomfort and pain feeling of most patients, atrophy, desquamation, pruritus and pigmentation of skin of crus, particularly foot and boot areas, and induration of skin and subcutaneous tissues, and eczema, thrombophlebitis and even ulcer can not be cured for a long time, thus affecting normal life and work of people. The varicosity treatment means are diversified, and the thermal ablation technology is widely applied in varicosity minimally invasive treatment and mainly comprises laser, microwave and radio frequency. The operation has the disadvantages of large trauma to the patient, pain, slow recovery, scars on the skin after long hospital stay, and high risk of infection.

With the development of science, the operation is gradually improved towards the aspects of no wound or minimal wound, the varicosity is treated by adopting an electrocoagulation method, and the electric coagulation of the catheter causes the denatured vein wall to be adhered and closed by electrically burning the blood vessel intima, so that the varicose vein is closed, and the varicose vein has the advantages of small wound, attractive appearance, quick recovery and the like because the varicose vein is only damaged and has no subcutaneous tunnel.

However, electrocoagulation treatment is not currently widely used in varicose veins. At present, an electrocoagulation catheter for treating varicose veins by catheter electrocoagulation is a long catheter containing metal wires, an electrocoagulation head of the electrocoagulation catheter extends out of the catheter from the front end of the long catheter, the electrocoagulation head is designed into a section of naked stainless steel wire or a metal ball, the current intensity is generally 40mA during electrocoagulation, the electrocoagulation output power is 35-40W, a large amount of heat can be generated in the electrocoagulation process, and the electrocoagulation catheter is sealed in a vein, so that tissues around the vein are easily burnt, and further pain is caused to a patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome because the produced heat gauge of electricity congeals in the current electricity congeals operation, the heat gathering causes the not enough of tissue burn around the blood vessel easily, provides an electricity congeals pipe with empty core channel, and this pipe is through storing cold water in the pipe inner chamber, conducts the heat that the electricity congeals head production to cold water in, reduces the gathering of heat in the vein, reduces the risk of patient's tissue burn around the blood vessel.

The purpose of the utility model is mainly realized through the following technical scheme:

an electrocoagulation catheter with a hollow channel comprises an outer sleeve, wherein an electrocoagulation head is arranged at the left end of the outer sleeve, a handle is sleeved on the outer surface of the closed right end close to the right end of the outer sleeve, and a lead and a water delivery pipe are arranged in the outer sleeve; one end of the lead is connected with the electrocoagulation head, and the other end of the lead passes through the right end of the outer sleeve and is connected with a power supply; the outer diameter of the lead is smaller than the inner diameter of the outer sleeve, a cavity between the lead and the outer sleeve is a water storage cavity, and water is arranged in the water storage cavity; a sealing gasket is arranged at the joint of the conducting wire and the electrocoagulation head, and the electrocoagulation head is isolated from the water storage cavity by the sealing gasket; the water delivery pipe is arranged on the inner wall of the outer sleeve, one end of the water delivery pipe is close to the left end of the outer sleeve, and the other end of the water delivery pipe penetrates through the right end of the outer sleeve and is connected with the water pump; the right end of the outer sleeve is also provided with a water outlet which is communicated with the water storage cavity and the outer space of the outer sleeve.

The utility model discloses a set up the water storage chamber between wire and the outer tube, a large amount of heats that the electricity congeals the head and produce when the electricity congeals can let electricity congeal the head temperature rise, electricity congeals head and water storage chamber contact, place cold water in the water storage chamber, the heat can conduct cold water, and set up water pump and delivery port, carry cold water to the water storage chamber during the use from the water pump, the raceway is located on the outer tube inner wall and be close to the outer tube left end for the one end of connecting the water pump, because the outer tube left end is the place that the heat is the most, the cold water that the water pump carried directly flows from the outer tube left end, water in the water storage chamber flows from the delivery port, accomplish water-cooling circulation, radiating efficiency. Because the electricity congeals head and wire contact position and has the electric current to pass through, the utility model discloses a set up sealed the pad, keep apart electricity congeals head and water storage chamber, prevent to cause the electric leakage behind cold water entering water storage chamber, the security when guaranteeing to congeal is through setting up the handle, holds the handle with the hand during operation, makes pipe work more stable.

When the utility model is applied, the incision in front of the medial malleolus joint is taken, the great saphenous vein is searched and broken off, and the far end is ligated; the handle is held by hand, the electrocoagulation head is inserted into the groin area from the proximal end, 10cm away from the junction of the great saphenous vein and the femoral vein, the great saphenous vein is ligated at a high position according to the traditional method, the electrocoagulation head is continuously inserted into the distal end of the high ligation position, a water pump is opened to deliver cold water, a lead is connected with a power supply, and after the power is turned on, the electrocoagulation edge is withdrawn outwards from the outer sleeve to electrocoagulate the whole vein gradually. By storing cold water in the inner cavity of the outer sleeve, heat generated by the electrocoagulation head is transferred to the cold water, so that the heat is reduced to be gathered in veins, and the risk of burning tissues around blood vessels of a patient is reduced.

Further, the sealing gasket is made of a heat-conducting silica gel insulating sheet. The heat conduction silica gel insulating piece is a high performance elastomer insulating material who uses special film as the substrate, has good heat conductivility, the utility model discloses a sealed pad adopts the heat conduction silica gel insulating piece to make, not only keeps apart electricity and congeals head and water storage chamber, can effectively let the heat that the electricity congeals head produced in addition conduct the water storage chamber through the heat conduction silica gel insulating piece, has guaranteed radiating efficiency.

Further, the electrocoagulation catheter with the hollow channel is characterized in that an insulating layer is arranged on the outer surface of the wire. Because the wire needs the switch on power then for the electricity of electricity congeals the head, the utility model discloses a wire surface is equipped with the insulating layer, prevents the wire electric leakage, the security when ensureing to congeal.

Further, the electrocoagulation conduit with the hollow channel is characterized in that the whole end of the electrocoagulation head is in a smooth spherical shape. When the electric coagulation head is used, when the electric coagulation head is inserted into a vein and moves, the smooth circular arc shape can reduce the friction between the electric coagulation head and the vein wall, and the smooth circular arc shape can also prevent the electric coagulation head from puncturing the vein wall due to the fact that the vein wall is very thin.

Furthermore, the electrocoagulation catheter with the hollow channel is characterized in that the outer surface of the outer sleeve is provided with scale marks along the axial direction of the outer sleeve. When the operation, need at the uniform velocity limit electricity congeal limit and move back the outer tube outwards, generally with 10cm/s limit electricity congeal limit and withdraw from the outer tube, the utility model discloses a set up the scale mark along its axial at the outer tube surface, the medical personnel of being convenient for judge its speed of pulling out the outer tube, guarantee going on smoothly of operation.

Further, the electrocoagulation catheter with the hollow channel is characterized in that the outer sleeve is made of polytetrafluoroethylene or nylon. During operation, the outer sleeve needs to protect surrounding tissues from electric shock when a lead is electrified, and materials need to be electrically insulated; the outer part of the material needs to pass through a venous channel, and the material needs good lubricating property to reduce the friction resistance; in the use process of the device, because the vein is not a straight line and meanders, the outer sleeve needs to bear certain tensile force and bending force, particularly after passing through a particularly bent part, the stress condition is worse, and the material has good mechanical property; the material needs to contact with the human body, needs to possess good biocompatibility, so the utility model discloses the outer tube adopts electric insulation, high temperature resistant, the lubricating property is good, the biocompatibility is good, the polytetrafluoroethylene or the nylon that mechanical properties is good to make.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

1. the utility model discloses a store cold water in the pipe inner chamber, conduct the heat that the electricity congeals the head and produce to cold water in, be equipped with water pump and delivery port moreover, can increase the circulation flow of cold water in the outer tube, thermal giveaway with higher speed reduces the gathering of heat in the vein, reduces the risk of patient's blood vessel surrounding tissue burn.

2. The utility model discloses a sealed pad adopts the heat conduction silica gel insulating piece to make, not only keeps apart electricity and congeals head and water storage chamber, can effectively let the heat that the electricity congeals the head and produce in conducting the water storage chamber through the heat conduction silica gel insulating piece moreover, has guaranteed radiating efficiency.

3. The utility model discloses a set up the scale mark along its axial at the outer sleeve pipe surface, the medical personnel of being convenient for judge its speed of pulling out the outer tube, guarantee going on smoothly of operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partial sectional view of the present invention.

Reference numbers and corresponding part names in the drawings:

1-outer sleeve, 2-electric coagulation head, 3-lead, 4-handle, 5-water pump, 6-water pipe, 7-water outlet, 8-sealing pad, 9-water storage cavity.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

as shown in figures 1 and 2, the electrocoagulation catheter with the hollow channel comprises an outer sleeve 1, wherein an electrocoagulation head 2 is arranged at the left end of the outer sleeve 1, the electrocoagulation head 2 in the embodiment is in a bullet head shape and is arranged coaxially with the outer sleeve 1, the electrocoagulation head 2 is in a smooth spherical shape relative to the whole end of the other end connected with one end of the outer sleeve 1, and the maximum outer diameter of the electrocoagulation head 2 is larger than the outer diameter of the outer sleeve 1. The outer surface that the outer tube 1 right-hand member is closed and is close to the right-hand member is equipped with handle 4, is equipped with wire 3 and raceway 6 in the outer tube 1. One end of the lead 3 is connected with the electrocoagulation head 2, and the other end thereof passes through the right end of the outer sleeve 1 and is connected with a power supply. The outer diameter of the lead 3 is smaller than the inner diameter of the outer sleeve 1, the cavity between the lead 3 and the outer sleeve 1 is a water storage cavity 9, and water is arranged in the water storage cavity 9. The water pipe 6 is arranged on the inner wall of the outer sleeve 1, one end of the water pipe is close to the left end of the outer sleeve 1, and the other end of the water pipe passes through the right end of the outer sleeve 1 and is connected with the water pump 5. The right end of the outer sleeve 1 is also provided with a water outlet 7, and the water outlet 7 is communicated with the water storage cavity 9 and the outer space of the outer sleeve 1. The lead 3 and the water pipe 6 of the embodiment are sealed at the joint of the right end of the outer sleeve 1.

Preferably, in order to prevent cold water from leaking electricity after entering the water storage cavity 9 and ensure the safety during electrocoagulation, a sealing gasket 8 is arranged at the joint of the conducting wire 3 and the electrocoagulation head 2, and the electrocoagulation head 2 is isolated from the water storage cavity 9 by the sealing gasket 8.

When the surgical instrument is used specifically, a front incision of the medial malleolus is taken, the great saphenous vein is searched and broken off, and the distal end is ligated; inserting the electrocoagulation head 2 into an inguinal region from the proximal end, ligating the great saphenous vein at a high position 10cm away from the junction of the great saphenous vein and the femoral vein by a traditional method, continuously inserting the electrocoagulation head 2 into the distal end of the high ligation position, turning on a water pump 5 to convey cold water, connecting a lead 3 with a power supply, and electrocoagulating the whole vein gradually with the electrocoagulation edge outwards retreating from the outer sleeve 1 after electrifying.

Example 2:

this example is further defined on the basis of example 1: the sealing gasket 8 in this embodiment is made of a heat-conducting silica gel insulating sheet. The heat conduction silica gel insulating piece is a high performance elastomer insulating material who uses special film as the substrate, has good heat conductivility, not only keeps apart electric coagulation head 2 and water storage chamber 9, can effectively let the heat that electric coagulation head 2 produced in addition conduct the water storage chamber 9 through the heat conduction silica gel insulating piece, has guaranteed radiating efficiency. Preferably, the outer surface of the lead 3 of the embodiment is provided with an insulating layer to prevent the lead 3 from leaking electricity and ensure the safety during electrocoagulation. Preferably, the outer surface of the outer sleeve 1 of the present embodiment is provided with scale marks along the axial direction thereof. Through set up the scale mark at outer surface of outer tube 1 along its axial, the medical personnel of being convenient for judge its speed of pulling out outer tube 1, guarantee going on smoothly of operation.

Preferably, the outer sleeve 1 of the present embodiment is made of polytetrafluoroethylene or nylon. During operation, the outer sleeve 1 needs to protect surrounding tissues from electric shock when the lead 3 is electrified, and the material needs to be electrically insulated; the outer part of the material needs to pass through a venous channel, and the material needs good lubricating property to reduce the friction resistance; in the use process of the device, because the vein is not a straight line and meanders, the outer sleeve 1 needs to bear certain stretching force and bending force, particularly after passing through a particularly bent part, the stress condition is worse, and the material is required to have good mechanical property; the material needs to be in contact with a human body and needs to have good biocompatibility, so the material is made of polytetrafluoroethylene or nylon which is electrically insulated, high-temperature resistant, good in lubricating property, good in biocompatibility and good in mechanical property.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An electrocoagulation catheter with a hollow channel, comprising: the electric coagulation instrument comprises an outer sleeve (1), wherein an electric coagulation head (2) is arranged at the left end of the outer sleeve (1), a handle (4) is sleeved on the outer surface of the closed right end close to the right end, and a lead (3) and a water delivery pipe (6) are arranged in the outer sleeve (1); one end of the lead (3) is connected with the electrocoagulation head (2), and the other end of the lead passes through the right end of the outer sleeve (1) and is connected with a power supply; the outer diameter of the lead (3) is smaller than the inner diameter of the outer sleeve (1), a cavity between the lead (3) and the outer sleeve (1) is a water storage cavity (9), and water is arranged in the water storage cavity (9); a sealing gasket (8) is arranged at the joint of the conducting wire (3) and the electrocoagulation head (2), and the electrocoagulation head (2) is isolated from the water storage cavity (9) by the sealing gasket (8); the water delivery pipe (6) is arranged on the inner wall of the outer sleeve (1), one end of the water delivery pipe is close to the left end of the outer sleeve (1), and the other end of the water delivery pipe penetrates through the right end of the outer sleeve (1) and is connected with the water pump (5); the water storage device is characterized in that a water outlet (7) is further arranged at the right end of the outer sleeve (1), and the water outlet (7) is communicated with the water storage cavity (9) and the outer space of the outer sleeve (1).

2. An electrocoagulation catheter with a hollow channel according to claim 1, wherein: the sealing gasket (8) is made of a heat-conducting silica gel insulating sheet.

3. An electrocoagulation catheter with a hollow channel according to claim 1, wherein: and an insulating layer is arranged on the outer surface of the lead (3).

4. An electrocoagulation catheter with a hollow channel according to claim 1, wherein: the whole end of the electrocoagulation head (2) is in a smooth spherical shape.

5. An electrocoagulation catheter with a hollow channel according to claim 1, wherein: the outer surface of the outer sleeve (1) is provided with scale marks along the axial direction.

6. An electrocoagulation conduit with a hollow channel according to any one of claims 1 to 5, wherein: the outer sleeve (1) is made of polytetrafluoroethylene or nylon.